Is it possible to get a B error from a chi square test?

[Tara Boyle]

Hello I performed a chi squared test using the below
This generates a p value but no B error.
Is this normal as I was asked 'what was my B error'

///Categorical variables - therefore fishers or chI SQUARED
tabulate gender dyspchi, chi2 column exact expected

[Leonardo Guizzetti]

What is a B error? I’ve never heard this term before.

[Rich Goldstein]

I assume that B error refers to type 2 error (and, thus, that power = 1-B error); many years ago I thought that post-hoc power might be useful but it is not and I know of no software that provides post-hoc power (or B error); maybe you are being asked about what the expected power of the test was in advance of actually doing the test???? I am out of town right now but there is lots of literature on the uselessness of post-hoc power

if this is not what you mean by "B error", please clarify

[Bruce Weaver]

Section 3 of this document by Russ Lenth has a nice and very concise discussion of the problems with post hoc power. Lenth described it as "a shorter summary of some comments [he] made in a panel discussion at the 2000 Joint Statistical Meetings in Indianapolis".

[George Ford]

could use

power

to get a measure of B (not post hoc, but post hoc power is generally frowned upon, though not in all fields).